This is an user contributed article.
I'm a devoted Firefox user like most of you. However, at work I use Internet Explorer for couple of web applications that works only on IE. Wouldn't it be nice to embed Internet Explorer inside Firefox as a tab to browse the websites that works only on IE? This is exactly what Firefox add-on IE Tab does as explained below.
This is a great tool for web developers, since you can easily see how your web page displayed in IE with just one click and then switch back to Firefox.